Question

Help will fan and medal!!!

Answer 1

Factor
x^2 + 17x + 72

Answer 2

Find two numbers such that :
they add up to 17
they multiply to 72

Answer 3

ummmmmm 8 and 9?

Answer 4

Yes.

Answer 5

So, you have: (x\(^2\)+\(\sf \color{red}{8x)+(9x}\)+72)
Now, factor out the common number and group.

Answer 6

how do i do that?

Answer 7

(- 17)² - 4 * 1 * 72 = 289 - 288 = 1 x1 = (17 - 1) / 2 = 8 x2 = (17 + 1) / 2 = 9 <=> x² - 17x + 72 = (x - 8) * (x - 9) => (x - 8) * (x - 9) = 0 <=> x = 8 or x = 9 <= roots

Answer 8

Huh??? umm thats a lot of numbers and symbols...

Answer 9

that's the equation and answer...

Answer 10

thats confuzing to me.... but umm thanks

Answer 11

I grouped it for you already, @SnowCrystal
notice i even put the parenthesis. Now, factor.

Answer 12

the whole answer is (X+9)(x+8)

Answer 13

oh i feel dumb

Answer 14

i medaled you abb0t you were really helpful

Answer 15

thanks guys for ur help